Poly Bubble Mailers Item Code: Type: Sold By Quantity Mailers Poly Bubble Mailers Self-Seal Description Poly Bubble Mailers combine the strength and versatility of a courier envelope with the cushioning of a bubble-lined mailer to reduce shipping damage; made from 100% polyethylene for improved strength; has a high slip lining for easier product insertion and extraction; has a hot-melt self-seal closure that is tamper-evident; the white outer surface is ideal for customized labeling or high-quality printing. *NOTE: This item uses package's Dimensional Weight not Gross Weight when shipping via UPS*